 Apache Geode
  
    CHANGELOG
  Apache Geode
  
    CHANGELOG
  
        
  Querying
Geode provides a SQL-like querying language called OQL that allows you to access data stored in Geode regions.
Since Geode regions are key-value stores where values can range from simple byte arrays to complex nested objects, Geode uses a query syntax based on OQL (Object Query Language) to query region data. OQL is very similar to SQL, but OQL allows you to query complex objects, object attributes, and methods.
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This topic answers some frequently asked questions on querying functionality. It provides examples to help you get started with Geode querying. 
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This section provides a high-level introduction to Geode querying such as building a query string and describes query language features. 
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This section includes advanced querying topics such as using query indexes, using query bind parameters, querying partitioned regions and query debugging. 
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The Geode query engine supports indexing. An index can provide significant performance gains for query execution.